Smoke-consuming device.



D. TOWNSEND. SMOKE GONSUMING DEVICE. APPLICATION FILED SEPT. 10, 1908.

Patented Feb. 24, 1914 3 SHEETS-$153111 1.

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SMOKE GONSUMING DEVICE. APPLICATION FILED SEPT. 10, 1908.-

Patented Feb. 24, 1914.

3 SHEETS-SHEET 2.

a D. TOWNSEND.

SMOKE GONSUMING DEVICE.

APPLICATION FILED SEPT. 10, 190B:

Patented Feb. 24, 191 1 3 SHEETS-SHEET 3.

12 F'IGK 5w: ESSES- PLANOGRAP" c0, WASHINGTON, D. c,

UNITED STATES PATENT OFFICE.

DAVID TOWNSEND, OF PHILADELPHIA, PENNSYLVANIA, ASSIGNOR TO CORNELL ECONOMIZER COMPANY, OF PHILADELPHIA, PENNSYLVANIA, A CORPORATION OF NEW JERSEY.

SMOKE-CONSUMING DEVICE.

Specification of Letters Patent.

Patented Feb. 24, 19 14.

Application filed September 10, 1908. Serial No. 452,353.

To all whom it may concern Be it known that I, DAVID 'lownsnxn, of Philadelphia, in the State of Pennsylvania, have invented a certain new and useful Improvement in Smoke- Consuming Devices,

whereof the following is a specification, reference being had to the accompanying drawings.

My improvement is particularly applicable to locomotive boilers, and comprises means whereby steam generated in such a boiler, is supplied to a retort in the boiler furnace, to form combustible gas which is injected below and passes into the coal fire in the furnace with the air supplied to the latter, and is also injected above said coal fire, and below the fiues in a sheet coextensive with the furnace chamber, so that any smoke arising from the coal fire, is forcibly mixed and consumed with said gas.

My invention comprises the various novel.

features of construction and arrangement hereinafter more definitely specified.

In said drawlngs; Figure I is a central vertical longitudinal sectional view of a lotional view,

Figs. I and perspective view, showing the gas retorts,

m Flg. III. Flg. V 1s a fraglndicated mentary perspective view of the burner 1ndicated in Fig. I, above the grate. Fig. VI

is a perspective view of one of the gas injecf tors indicated in Fig. I, below the grate. Fig. VII is a rear view showing the relative position and jectors and burner, indicated in Fig. I. Fig.

VIII is a central vertical longitudinal sectional view of the injector shown at the left of Fig. VII, but on a larger scale. Fig. IX is a vertical sectional view of said injector,

taken on the line IX, IX in Fig. VIII. Fig.

' furnace 2, connected by the tubes X is. a fragmentary sectional view, similar to Fig. II, but on a larger scale, showing a refractory tile sheathing at the region of such a retort adjoining the grate. Fig. XI is a plan sectional view, taken on the line XI, XI in Fig. X. Fig. XII is a plan sectional view, similar to Fig. XI, showing another form of refractory sheathing.

In said figures; the boiler 1 comprises the line III, III inconnections of the retorts, in-1 3, with the chamber at, having the outlet stack 5. The retorts 7 and 8 are arranged upon opposite sides of said furnace to receive steam from the boiler 1, and produce a combustible gas for said furnace. Said retorts being connected by their respective pipes 10 and 11, coupled by the union 12, are supported by the angle irons 13, on the frame 14, of the grate 15, and are held against the inside walls 16, of the water legs of the boiler, by the angle irons 17. The retort 7, is connected with the steam dome 19, by the pipe 20, controlled by the valve 21, and comprises the tortuous passageway 22, arranged to direct the steam from the pipe 20, through the pipes 10 and 11, to a similar tortuous passageway 23, in the retort 8. It is important to note that said passageways 22 and 23, are so shaped that the. steam superheated therein is progressed therethrough in a thin film, so as to insure the maximum exposure thereof to the heat of the furnace, for, such exposure is requisite to produce the combustible gas required. Vhen not thus exposed, the steam remains as such, and is practically incombustible. Referring to Fig. VII, it may be observed that the gas produced in said retorts 7 and 8, is directed from the latter through the pipe 241, and its branches 25 and 26, under control of the valve 27, to the burner 28, which as indicated in Fig. I, extends transversely in the furnace chamber 2, against the rear wall 29 thereof. Said burner is supported by the shelf 30, of refractory material, adjacent to the crown sheet 31, and has a horizontal series of jet orifices 32, arranged to direct the gas in a common plane extending to the tube sheet 33, below the tubes 3, and above the level of the fuel 34. As shown in Fig. VII, the gas produced in said retorts 7 and 8, is also directed from the latter through the pipe 35, controlled by the valve 36', leading to the manifolds 37 and 38, of the respective injectors 39 and 40, saidmanifolds being independently controlled by the respective valves 42 and a3. As shown in Figs. VIII and IX, said injectors 39 and 40, each comprise three tubes 44, each having a series of jet orifices 4.5, arranged to direct jets of gas in planes extending parallel with the axis of said tubes, said planes converging in the direction of flow, as indicated by the arrows in Fig. VIII; in a casing formed by the top and bottom plates 46 and 47, connected by the bolts 49 and 50, and having the lateral grooves 51, arranged to receive the opposite edges of the side plates 52, as shown in Fig. IX. Said side plates 52, are recessed to receive the deflecting plates 55, which are arranged to cooperate with the top and bottom plates to admit air in the direction of the jets above described, said air being drawn in by said jets to dilute the gas from said orifices 45. As shown in Fig. IX, said tubes are secured in said casing by the cap nuts 56, bearing against one of the side plates 52, in opposition to pins 57 in said tubes, bearing against the opposite plate 52. As best shown in Fig. VIII, the front portion of the top plate 46, of said casing, is curved to direct the mixture of gas and air downward through the opening 59, into the inclosed ash-pan 60, where it is distributed beneath the grate 15, and forced up through the fuel 34, to facilitate the combustion of the latter and thus minimize the amount of combustible material in the products of combustion arising from said fuel. However, the residue of combustible material in said products of combustion, is consumed when it encounters the gas directed from the burner 28.

As indicated in Figs. X and XI; the lower region of the retorts may be conveniently protected from direct contact with the fuel, by series of refractory tiles 62, retained by the T-irons 63, secured at their lower ends to the grate frame 65, and at their upper ends by the horizontal angle iron 66; the latter being secured at its ends to the vertical angle irons 67. As indicated in Fig. XII; the retorts may be protected by a layer of refractory cement 69, retained by a plate 70.

I do not desire to limit myself to the precise details of construction and arrangement herein set forth, as it is obvious that various modifications may be made therein, without departing from the essential features of my invention, as defined in the appended claims,

I claim 1. The combination with a coal furnace; of a boiler operatively connected with said furnace; flat gas retorts in said furnace, extending along its side walls, each retort inclosing a shallow tortuous passageway, arranged to direct a film of steam in parallel relation with the respective side walls; a pipe connecting said retorts; a pipe having a controlling valve connecting one of said retorts with the steam space in said boilers; a burner extending across the rear wall of said furnace, comprising a horizontal series of jet orifices arranged to direct the gas, generated in said retorts, in a plane extending to the tube sheet, above the coal and below the boiler tubes; and, a pipe connecting said burner with said retort other than the one with which the boiler is connected.

2. The combination with a coal furnace; of a boiler comprising a steam dome, operatively connected with said furnace; flat retorts, each inclosing a tortuous passageway, extending along the opposite side walls of said furnace; an angle iron extending along the lower edge of each of said retorts, preventing their lateral displacement; vertical angle irons preventing tilting of said retorts; a conduit connecting the passageways in said retorts; a conduit connecting one of said retorts with said steam dome; a burner extending across the rear wall of said furnace and comprising a straight horizontal series of jet orifices arranged to direct a plane sheet of gas to the tube sheet, above the coal and below the boiler tubes; and, a conduit connecting the other retort with said burner.

3. The combination with a coal furnace; of a boiler comprising a steam dome, operatively connected with said furnace; fiat retorts, each inclosing a tortuous passageway, extending along the inside of the opposite side walls of said furnace; a pipe extending from each of said retorts in communication with its passageway; a union connecting said pipes within said furnace; a pipe having a controlling valve connecting one of said retorts with said steam dome; a burner, having a straight horizontal series of jet orifices, extending across the rear wall of said furnace in proximity to the crown sheet, and arranged to direct .gas in an oblique plane to the tube sheet above the coal and below the boiler tubes; a pipe having a controlling valve connecting the other retort with said burner; an inclosed ash pan, beneath the grate; injectors arranged to discharge downwardly into said ash pan; a pipe having a the latter retort with said injectors; and, a controlling valve for each of said injectors.

4. The combination with a coal furnace; of a boiler comprising a steam dome, operatively connected with said furnace; fiat retorts, each inclosing a tortuous passageway, extending along the opposite side walls of said furnace; means connecting said passageways through said furnace; a pipe connecting one of said retorts with the steam dome; a burner connected with the other of said retorts within said furnace extending across the rear wall thereof, adjacent to the crown sheet, and having a straight horizontal series of jet orifices arranged to direct a plane sheet of gas to the tube sheet above the coal and below the boiler tubes; a shelf composed of refractory material secured to said rear wall, and supporting said burner; and, means comprising angle irons arranged to retain said retorts against said side walls.

5. The combination with a coal furnace; of a boiler comprising a steam dome, operatively connected with said furnace; flat recontrolling valve connecting torts, each inclosing a tortuous passageway, extending along the opposite side walls of said furnace; means arranged to prevent the lateral displacement of said retorts; means arranged to prevent tilting of said retorts; means connecting the passageways in said retorts; means connecting one of said retorts with said steam dome; a burner extending across the rear wall of said furnace and comprising a straight horizontal series of jet orifices arranged to direct a plane sheet of gas toward the tube sheet, above the coal and below the boiler tubes; a pipe connecting the other retort with said burner; an inclosed ash pan; injectors arranged to discharge downwardly into said ash pan; a pipe connecting the latter retort with said injectors; and, valves arranged to control said pipe and injectors.

6. The combination witha furnace; of a boiler comprising a steam dome, operatively connected with said furnace; fiat retorts, each inclosing a broad, fiat, tortuous passageway, having an inlet and an outlet; said passageway having its least dimension normal to the side walls of said retort, and said dimension being not more than oneeighth of any other dimension of said passageway, and extending along the inside of the opposite side walls of said furnace; a pipe extending from each of said retorts in communication with its passageway; a union connecting said pipes within said furnace; a pipe having a controlling valve connecting one of said retorts with said steam dome; a burner, having a straight horizontal series of jet orifices, extending across the rear wall of said furnace in proximity to the crown sheet and arranged to direct gas in an oblique plane to the tube sheet above the coal and below the boiler tubes; a pipe having a controlling valve connecting the other retort with said burner; an inclosed ash pan, beneath the grate; injectors arranged to discharge downwardly into said ash pan; a pipe having a controlling valve connecting the latter retort with said injectors; and, a controlling valve for each of said injectors.

7. The combination with a furnace; of abo-iler; flat gas retorts in said furnace, extending along its side walls, each retort inclosing a shallow tortuous passageway, arranged to direct a film of steam in parallel relation with the respective side walls; a pipe connecting said retorts; a pipe having a controlling valve connecting one of said retorts with the steam space in said boiler; a burner extending across the rear wall of said furnace, comprising a horizontal series of jet orifices arranged to direct the gas, generated in said retorts, in a plane extending to the tube sheet, above the fuel and below the boiler tubes; and, a pipe connecting said burner with said retort other than the one with which the boiler is connected.

In testimony whereof I have hereunto signed my name at Philadelphia, Pennsylvania, this ninth day of September, 1908.

DAVID TOlVNSEND.

"Witnesses ARTHUR E. PAIGE, Lnor C. BUNNAGAR.

Copies of this patent may be obtained for five cents each, by addressing the Commissioner of Patents. Washington, D. G. 

